Really depending on what kind of music you generally listen to. For pop/rock, A300 may be a better choice (especially for the money). For jazz/classical, Classe would be best. My buddy used to drive his N805 with the Classe CAP 151 with great results, until he upgraded to a Cary preamp/AR tube amp combo. If you want a lush and warm tube-like amp to balance the slightly bright N805, Classe would be a great choice. No comment on the Arcam since I've never auditioned it, but heard good things about it too.
For your price range, you can consider the following used integrated:
Solid State
- Musical Fidelity A300
- Musical Fidelity A3.2
- Classe CAP 151
- Creek 5350
- Primare I20
Then again, you may want to look into tube integrated too. I was on the same boat a couple months ago looking for a solid state integrated, but ended up getting a tube one. Check out the following:
- Conrad Johnson CAV-50
- Jolida 502B
- Manley Stingray
- VAC Avatar (slightly more expensive)
Happy Auditioning...
Steve